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<?php
/**
* Used to set up all core blocks used with the block editor.
*
* @package WordPress
*/
define( 'BLOCKS_PATH', ABSPATH . WPINC . '/blocks/' );
// Include files required for core blocks registration.
require BLOCKS_PATH . 'legacy-widget.php';
require BLOCKS_PATH . 'widget-group.php';
require BLOCKS_PATH . 'require-dynamic-blocks.php';
/**
* Registers core block style handles.
*
* While {@see register_block_style_handle()} is typically used for that, the way it is
* implemented is inefficient for core block styles. Registering those style handles here
* avoids unnecessary logic and filesystem lookups in the other function.
*
* @since 6.3.0
*
* @global string $wp_version The WordPress version string.
*/
function register_core_block_style_handles() {
global $wp_version;
if ( ! wp_should_load_separate_core_block_assets() ) {
return;
}
$blocks_url = includes_url( 'blocks/' );
$suffix = wp_scripts_get_suffix();
$wp_styles = wp_styles();
$style_fields = array(
'style' => 'style',
'editorStyle' => 'editor',
);
static $core_blocks_meta;
if ( ! $core_blocks_meta ) {
$core_blocks_meta = require BLOCKS_PATH . 'blocks-json.php';
}
$files = false;
$transient_name = 'wp_core_block_css_files';
/*
* Ignore transient cache when the development mode is set to 'core'. Why? To avoid interfering with
* the core developer's workflow.
*/
$can_use_cached = ! wp_is_development_mode( 'core' );
if ( $can_use_cached ) {
$cached_files = get_transient( $transient_name );
// Check the validity of cached values by checking against the current WordPress version.
if (
is_array( $cached_files )
&& isset( $cached_files['version'] )
&& $cached_files['version'] === $wp_version
&& isset( $cached_files['files'] )
) {
$files = $cached_files['files'];
}
}
if ( ! $files ) {
$files = glob( wp_normalize_path( BLOCKS_PATH . '**/**.css' ) );
// Normalize BLOCKS_PATH prior to substitution for Windows environments.
$normalized_blocks_path = wp_normalize_path( BLOCKS_PATH );
$files = array_map(
static function ( $file ) use ( $normalized_blocks_path ) {
return str_replace( $normalized_blocks_path, '', $file );
},
$files
);
// Save core block style paths in cache when not in development mode.
if ( $can_use_cached ) {
set_transient(
$transient_name,
array(
'version' => $wp_version,
'files' => $files,
)
);
}
}
$register_style = static function ( $name, $filename, $style_handle ) use ( $blocks_url, $suffix, $wp_styles, $files ) {
$style_path = "{$name}/{$filename}{$suffix}.css";
$path = wp_normalize_path( BLOCKS_PATH . $style_path );
if ( ! in_array( $style_path, $files, true ) ) {
$wp_styles->add(
$style_handle,
false
);
return;
}
$wp_styles->add( $style_handle, $blocks_url . $style_path );
$wp_styles->add_data( $style_handle, 'path', $path );
$rtl_file = "{$name}/{$filename}-rtl{$suffix}.css";
if ( is_rtl() && in_array( $rtl_file, $files, true ) ) {
$wp_styles->add_data( $style_handle, 'rtl', 'replace' );
$wp_styles->add_data( $style_handle, 'suffix', $suffix );
$wp_styles->add_data( $style_handle, 'path', str_replace( "{$suffix}.css", "-rtl{$suffix}.css", $path ) );
}
};
foreach ( $core_blocks_meta as $name => $schema ) {
/** This filter is documented in wp-includes/blocks.php */
$schema = apply_filters( 'block_type_metadata', $schema );
// Backfill these properties similar to `register_block_type_from_metadata()`.
if ( ! isset( $schema['style'] ) ) {
$schema['style'] = "wp-block-{$name}";
}
if ( ! isset( $schema['editorStyle'] ) ) {
$schema['editorStyle'] = "wp-block-{$name}-editor";
}
// Register block theme styles.
$register_style( $name, 'theme', "wp-block-{$name}-theme" );
foreach ( $style_fields as $style_field => $filename ) {
$style_handle = $schema[ $style_field ];
if ( is_array( $style_handle ) ) {
continue;
}
$register_style( $name, $filename, $style_handle );
}
}
}
add_action( 'init', 'register_core_block_style_handles', 9 );
/**
* Registers core block types using metadata files.
* Dynamic core blocks are registered separately.
*
* @since 5.5.0
*/
function register_core_block_types_from_metadata() {
$block_folders = require BLOCKS_PATH . 'require-static-blocks.php';
foreach ( $block_folders as $block_folder ) {
register_block_type_from_metadata(
BLOCKS_PATH . $block_folder
);
}
}
add_action( 'init', 'register_core_block_types_from_metadata' );